Home / 320,996.28-442,827.90-207,855.48

Finding the Fourth Proportional to 320,996.28, 442,827.90 and 207,855.48

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Solution

The fourth proportional to 320,996.28, 442,827.90 and 207,855.48 is: 286,745.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,996.28 : 442,827.90 = 207,855.48 : x
  2. Step 2: Convert to fraction form
    320,996.28/442,827.90 = 207,855.48/x
  3. Step 3: Cross multiply
    320,996.28x = 442,827.90 × 207,855.48
  4. Step 4: Simplify right side
    320,996.28x = 92,044,205,711.89
  5. Step 5: Solve for x
    x = 92,044,205,711.89/320,996.28
  6. Step 6: Final answer
    x = 286,745.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.